the longer you leave it with no covering, the thicker the rind will be, especially as you are in a dry environment. If it is a large cheese (6 inch or more diameter, at least 5-6 inches thick) you will still have a decent amount of cheese inside the rind. If it is smaller, though, you will lose a lot to dryness.
No real test I know of to know that it is "ready" for waxing, larding or bandaging (I mention those methods because that is what I have used in the past). I still lard my cheeses after they are consistently dry when turning them. After a couple of months, I vaccuum seal them.